Ok, so your family does already have chickens? See you didn't tell us that, we were under the impression you just jumped on the "aww they are cute " wagon. Good to know you do have experience. What breeds does your family already have? Let's start there and move on one step at a time. Read all the threads , website, and books you can about silkies. Google search for a silkie breeder near you and ask them as many questions as you can possibly think of and then ask 100 more. If they are good people they will be happy to oblige a young person. Most chicken people want more people to become chicken people.
I'm not a breeder but I do mix and match my breeds to try and narrow down the traits I want. I want big meaty birds that are good layers. So I started with 5 black astrolorp and mated them to a lavender orpington. Both breeds lay good and both are good size, but I was curious about a mix of the 2. See breeding can be a lot of fun and if there is something specific (egg production, meat size, broody, )you want to breed for you have to search high and low ,hatcheries, breeders, backyard flock owners, to find several birds of the same breed from different blood lines, but at the same time all carry the SOP.